This is a great beach for families and couples. Unlike Miami Beach, there is no nudity here so its great for families. The beach is also good for children because it stays at about 3 feet high for at least 50 yard before it starts to get deep. Also by the time the waves get to the shore they have melted away but the further you go out, the waves are higher and great for both surfing and boogie boarding.
The sand is very fine and powderlike and there is no real trash on this public beach. It's very clean.
Glass bottles are not allowed on the beach nor is public drinkins so if you have cans of beer they must be in a cozy so as to not show what you are drinking. If you bring bottles with you, I suggest you also bring cups so that when the police come by you won't be ticketed.
The best thing is this beach is open 24 hours a day so you may enjoy an evening on the beach as well. They also have swinging benches for you to enjoy with your spouse.
Finally, its close enough to Savannah (18 miles away) that you don't have to stay in Tybee. They do have a lot of places you can rent which start at $139 a night depending on where you stay. However, I recommend staying in Savannah because you have more options of things to do other than the beach.